Numerology Effect on 5G 28 GHz Communication System Performance

OFDM Numerology is one of the features that distinguishes between LTE technology and 5G NR technology. OFDM Numerology is a set of parameters used in 5G NR communication systems dependent upon user needs and channel conditions. In addition, 5G NR technology uses Polar Codes as error correction and error detection. Testing is needed to determine the performance characteristics of the 5G NR communication system based on OFDM Numerology provisions by adding Polar Codes, so that the resulting performance is close to real and can be a reference for efficient power requirements in the implementation of 5G NR technology in the future. This paper conducts a test to determine the performance characteristics of the 5G NR communication system based on OFDM Numerology provisions by adding Polar Codes. This paper simulation uses QPSK modulation and uses soft demapper techniques so that the resulting performance is more optimal. This study reviewed the bit error rate (BER) and frame error rate (FER) parameters. This study also calculated outage probability with coding rates R = 1 and R = 1/2. The results of this paper test showed that numerology 3 had the same performance characteristics as numerology 4, both uncoded and Polar Codes. The performance of the 5G NR communication system using Polar Codes was better than uncoded.